Device for eliminating influences of bubble jet flow in cabin-section underwater explosion experiment

A technology of underwater explosion and bubbles, which is applied in transportation and packaging, ship parts, ships, etc., and can solve the problems that are not conducive to the influence of the cabin model and the effect of the impact

Inactive Publication Date: 2012-02-22
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the effect of the bubble jet on the structure will affect the effect of the experiment...

Method used

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  • Device for eliminating influences of bubble jet flow in cabin-section underwater explosion experiment
  • Device for eliminating influences of bubble jet flow in cabin-section underwater explosion experiment
  • Device for eliminating influences of bubble jet flow in cabin-section underwater explosion experiment

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Embodiment Construction

[0017] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0018] combine Figure 1-Figure 4 . The device of the present invention that eliminates the influence of the bubble jet in the underwater explosion experiment of the cabin mainly includes a grid plate, a rope 7 and a rope tightener 6; the side length of the grid plate is 2R m The square composite plate, where R m is the maximum radius of the bubble, the first layer of the grid plate is the rubber layer 4, and the second layer is the steel plate layer 3, the thickness of the two layers is equal, each is 2cm, the size of the grid is uniform, and the area of ​​the grid accounts for 1% of the total area. / 2; install a rope on each of the four corners of the grid plate, and set a rope tightener on each rope; combine Figure 5 , the grid plate is fixed by ropes at a distance D below the blast center, D=0.4R m . There is a cavity structure 1 inside the rubber layer....

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Abstract

The invention provides a device for eliminating influences of a bubble jet flow in a cabin-section underwater explosion experiment. The device comprises a turbogrid plate, ropes and euphroes; the turbogrid plate is a quadrate composite plate with each side length of 2Rm, Rm is a maximal radius of each bubble, the first layer of the turbogrid plate is a rubber layer, a second layer of the turbogrid plate is a steel plate layer, the rubber layer and the steel plate layer are same in thickness, grids are uniform in size, and the area of the grids accounts for 1/2 of the total area; four corners of the turbogrid plate are respectively provided with a rope, and each rope is provided with one euphroe; and the turbogrid plate is fixed at a position D(D=0.4Rm) away from an explosion center below the explosion center by using the ropes. The device provided by the invention has the characteristics that: firstly the turbogrid plate can be used for attracting the bubbles so as to reduce the influences of the jet flow; secondly, by means of the transmission effect of the grids to a shock wave, the turbogrid plate can be used for greatly reducing the reflected shock wave so as to maximally lower the interferences of the reflected shock wave to a normal incident shock wave; and finally, the advantages of lower method cost, simplicity for workpiece processing, convenience for operation and better effect are achieved.

Description

technical field [0001] The invention relates to an underwater explosion experiment device, in particular to a cabin underwater explosion experiment device which eliminates the influence of bubble jets on structures. Background technique [0002] When carrying out the model cabin experiment, considering the quality of the charge and the limitation of the experimental site, in order to achieve the similar damage effect in the real ship explosion, the distance between the charge and the model should be very small, and the explosion distance may be smaller than the maximum radius of the bubble. At this time, the bubbles produced by the explosion will be strongly attracted by the surface of the structure during the collapse stage, and a jet will be formed inside the bubble, which is generated on the side away from the surface of the structure, and passes through the bubble at high speed until it hits the bubble wall the other side. Therefore, the effect of the bubble jet on the ...

Claims

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Application Information

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IPC IPC(8): B63B9/00
Inventor 崔杰郭君张阿漫白兆宏姚熊亮任少飞
Owner HARBIN ENG UNIV
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